🚀 go-pugleaf

user@domain.invalid wrote:
> Hi everyone, will you please spend some time with my problem and give 
> some clue to the solution to me? I am going to include 1)program 
> description, and 2)java source file below (instead of 'attaching' them).
> I described my problem or, I believe, JTabbedPane's problem in 1).
> 
> Your hint, clue, suggestion, or even question is greatly appreciated.
> 
> PS I tested my program in JBuilderX (Foundation), NetScape7, and MSIE7 
> and the behavior of my program is the same.
 > [... lots of verbiage omitted ...]

First, you don't have to run your code as
an applet to see this.  Just create
a JFrame, add the tabbed panel, and do
your stuff.

Second, it's highly unlikely that you would
draw a string into a text pane.  How it is
being drawn is probably complex enough to
cause this phenomenon.  I'd draw into
a panel, not a text pane, which you add
to the tabbed pane.  Change
your code to add a JPanel which has
a BorderLayout.  Then add the textpane to
the JPanel: add it using a BorderLayout.EAST.
Set the preferred size of the textpane
to something like 100, 190.

   if ( tbp.getTabCount() == 0 ) {
     JPanel p = new JPanel(new BorderLayout());
     p.add(txp, BorderLayout.EAST);
     txp.setPreferredSize(new Dimension(100, 190));
     tbp.addTab("tab 1", p);
   }

Third, change the draw string method so that it draws into
the *panel*, not the textpane.

   tbp.getSelectedComponent().getGraphics();
   ...


Fourth, put the contents of the draw string method
into a nested class which implements Runnable
and call an instance of that runnable
using

   ...
   if ( useDrw ) {
     SwingUtilities.invokeLater(
       new UpdateRunner(n, msg2));
   }
   ...

   public class UpdateRunner implements Runnable {
     int n;
     String msg;
     UpdateRunner(int number, String message) {
       n = number;
       msg = message;
     }
     public void run() {
       // put the contents of your drawStringWay()
       // method here.
     }
   }


It may be an interesting phenomenon, but
the important question is: how does this
affect you in the real world.


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-- 


Paul Furbacher (TeamB)

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